.darkTitle {
	background: url(../img/title_dark.jpg) no-repeat center center fixed;
	color: white;
	padding: 12% 0% 12% 0%;
}

.subtitle {
	background-color: #222;
	padding: 2% 0% 2% 0%;
}

.mathematicsImg {
	background: url(../img/mathematics2.jpg) repeat-y center center fixed;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	background-size: cover;
}

.cardboardImg {
	background: url(../img/carbon.jpg) repeat center center fixed;
	color: white;
}